A specific drug for apple anthracnose and leaf blight

Colletotrichum apple leaf blight mainly damages leaves and leads to a large number of leaves. Among them, Gala, Jinguan and Jonagin had higher damage rate, Fuji and Hongxing had high disease resistance. So, what are the specific drugs for apple anthracnose blight?

1. Specific medicine for apple anthracnose blight

At present, the effective medicaments for apple anthracnose blight mainly include pyraclostrobin, prochloraz, dicyananthraquinone (early maturing varieties such as Gala have risks), bromothalonil and other chemical medicaments, and biological preparations such as multi-antibiotic, kasugamycin, etc.(biological preparations alone have poor effect and need to be used in combination with chemical preparations). In addition, spraying should ensure that leaves and fruits are evenly coated. At the same time, the higher the atomization degree of liquid medicine, the better the control effect.

2. Prevention methods of apple anthracnose blight

1. Selection of resistant varieties

New orchard as far as possible to choose non-susceptible fruit varieties. and ridging cultivation.

2. Stop the spread of germs

Thoroughly clean up the orchard, clean up the residual branches and leaves, scrape off the branches and destroy the pathogens. Spraying functional liquid fertilizer can strengthen tree vigor and improve tree disease resistance.

3. eradication of overwintering bacteria

For orchards with a large number of deciduous leaves in October, spray 100-200 times copper sulfate solution +800-1200 times solution of fertile leaves once; before apple germination in April of the next year, spray 100-200 times copper sulfate solution +800-1200 times solution of fertile leaves once again, or other strong killing agents, in order to eradicate the bacteria overwintering on branches and dormant buds.

4. Growth phase medication

1) Half a month before germination: spray Kuihuiling 60-100 times solution + organic silicon throughout the garden to kill germs and nourish trees.

2) Flowering and leaf development period: use 300 times of Liangguo An +600 times of Wofengsu + silicone spray twice, with an interval of 10 days each time. (Flower protection)

3) The first physiological fruit dropping period: use Liangguo An 300-500 times + Wofengsu 600 times + silicone spray. (fruit preservation)

4) Fruit growth period: use Liangguo An 300-500 times + garlic oil 1000 times + Wofengsu 600 times + organic silicon for regular spraying, basically every interval of 10-15 days.

5) After harvest in autumn: spray Kuihuoling 200-300 times + Wofengsu 600 times + organic silicon once.

6) After 2/3 leaves fall: spray Kuihuiling 60-100 times solution + organic silicon to kill bacteria and nourish trees.

5. orchard grass

Improve fruit tree growth environment. Improve disease resistance of fruit trees.

6. orchard drainage

Orchard rainy season should pay attention to drainage, prevent rain water in the orchard for a long time.

7. mulch film

Prevent the rain from splashing on the ground, and is conducive to orchard drainage.

Apple anthracnose blight can be prevented, so farmers should do a good job in the planting process.